Rugated culvert co



Oct. 27, 1931. A. R. HUTTON 1,828,866

DRAIN CULVERT Filed Feb. 19, 1930 J2 if /i&

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:3 ym BY mfv mg ATTORNEYS.

vert having sufiicient Patented Oct. 27, 1931' ARTHUR a. HUTTON, or BERKELEY, OALIEORNIA,.ASSIGNOB To camronma c013.-

RUGATED CUIJVEBT (20., FORNIA 0F BERKELEY, CALIFORNIA, A CORPORATION OF CALL DRAIN cuLvEE'r Application filed February 19, 19.30. Serial ms. 429,576.

The present invention relates to drain culverts for the protect-ion of earth fills or embankments.

In the construction of fills or embankments, especially those for highways, it is necessary to provide suitable drains to carry off rain water falling upon the top of the fill, i1; order to prevent erosion of the sides there- 0 The principal object of the present invention is to provide an inexpensive structure which can be easily installed .at the upper edge of a highway or other fill to collect and carry off rain water falling upon its top.

Other objects are to provide a drain culflexibility to withstand the usual settling of a new fill and. sufficientstrength to prevent destruction from accidental contact of vehicles moving along the highway. Still further objects are to provide a drain culvert which will not materially damage the wheels of a vehicle accidentally striking it; which is protected against the entrance of leaves or foreign matter falling upon it, and is self cleaning due tothe movement of water flowing through it; and which will not wash out under the action of large amounts of water.

These and other objects and advantages of the invention will become apparent from the following specification which should be read with the understanding that the form,.oconstruction, and arrangement of the device as herein described may be varied, withinthe limits of the claims hereto appended, without departing from the spirit of the invention as expressed in said claims.

A preferred embodiment of the invention will now be described fully with reference to the accompanying drawings, wherein Fig. 1 is a transverse section showing the device installed at the edge of a highway grade fill.

Fig. 2 is a front elevation of the device.

In the drawings, the reference numeral 1 designates a portion of a fill supporting a highway grade surface 2, and having a sloping side 3. My drain culvert comprises a cylindrical drum-like receiving head 4 formed of corrugated sheet metal, preferably galby the gutter 11 to foreign matter that may vanized iron or steel, .and having closed ends, one ofwhich is shown at- 5. The front of the drum 4 has an inlet aperture 6,

ably rectangular, and at the rear is an outlet aperture 7 adapted for connection with a tubular conduit 8, the latter beingalso preferably formed of corrugated sheet metal. An apron or bulkhead 9 is secured to the lower. portion of the drum 4 and extends downwardly therefrom.

I In installing the device, the drumor head 4 is placed at the side of thehighway 2, and at the upper edge of the fill, with the inlet aperture 6 facing the highway. The outlet conduit 8-extends downwardly as far as necessary uponthe slopingside-i, of the fill. The drum 4 and the upper end are then covered with earth, as shown at 10, and this additionalfill is extended longitudinally form a gutter 11 for the purpose of directing the water to the-inlet 6 of the drum. The bulkhead 9 is buried in the main fill 1, and this together with the additional fill 10, holds the device securely in position and prevents it from washing out.

It will be readily understood that rain water falling upon the highway 2 is directed the inlet 6 of the drum or head 4, and flows into and through said drum and'out through the outlet 7 and the conduit 8, discharging at any suitable point, not shown, preferably at the bottom of the fill. Because of the cylindrical and corrugated construction of the head 4, it can be made sufficiently rigid to prevent destruction or serious damage, from being accidentally struck by the wheels of vehicles passing along the highway, and at the same time will not cause; material strikingit. The corrugated sheet metal-con: struction, moreover, prevents the device from being damaged by the settling of the fill. The cylindrical form of the head 4 with the inlet 6 on the side prevents the device from being clogged by leaves or other foreign material falling upon it, and also permits the water flowing through it to carry away any such find entrance. The device is inconspicuous in appearance, can

prefer- I along the edge of the highwayto,

damage to such wheels of the conduit 8 1 ably secured to the front head formed with an inlet be made, shipped and installed at a minimum cost, and can be easily taken up and moved to other locations, if desired.

Although it is not essential, I prefer to make the head 4 of a single sheet of cylindrically bent corrugated metal, with its ends separated t'o form the inlet aperture 6. The ends 5 are applied in any desired manner, and strips 12 are secured across the ends of the inlet 6, as shown, to assist in holding the head in cylindrical form.

A second bulkhead or flange 13 ispreferof the head just above the inlet 6, and extends upwardlya short distance, in order to retain the earth at the top of the additional fill 10 and prevent it from falling in front of said head and obstructing the inlet.

I claimz- 1; A drain culvert comprising a drum like head having an inlet at one side and an outlet, and a conduitconnected with and leading away from said outlet.

2. A drain culvert comprising a drum like of corrugated sheet metal and provided with an inlet at one side and a substantially opposite outlet, and a conduit connected with and leading away from said out-- let. a

3. A drain culvert comprising a drum like head forming a receiving chamber with an inlet at one side and an outlet, a conduit connected with and leading away from said outlet, and a bulkhead secured tothe lower portion of said head and extending downwardly therefrom.

4:. A drain culvert comprising a drum like head forming a receiving chamber and having closed ends and inlet tures in its side walls, and a conduit conneeted with and leading away from said outlet.

5. A drain culvert comprising a drum like head forming a receiving chamber provided on one side and an outlet. an exterior flange positioned above said inlet and extending upwardly therefrom, and a conduit connected with and leading away from said outlet.

6. A collecting head for drain culverts comprising a substantially cylindrical drum having an inlet on one side and a substantially opposite outlet, an exterior flange positioned above said inlet, and a bulkhead extending downwardly from the lower portion of said drum.

In testimony whereof I have signed my name to this specification.

ARTHUR R. HUTTON.

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